Sha256 Hashes in Scilab

Here’s the translation of the SHA256 Hashes example from Go to Scilab:

// SHA256 hashes are frequently used to compute short identities for binary
// or text blobs. For example, TLS/SSL certificates use SHA256
// to compute a certificate's signature. Here's how to compute
// SHA256 hashes in Scilab.

// Scilab doesn't have a built-in SHA256 function, so we'll use a third-party library
// called 'sha256'. You need to download and install this toolbox before running this code.

// Load the SHA256 library
exec('sha256.sci', -1);

function main()
    s = "sha256 this string"
    
    // Compute the SHA256 hash
    hash = sha256(s)
    
    // Print the original string and its hash
    disp(s)
    disp(hash)
end

// Run the main function
main()

In Scilab, we don’t have built-in cryptographic functions like in some other languages. Instead, we’re using a third-party library for SHA256 hashing. Before running this code, you need to download and install a SHA256 toolbox for Scilab.

The exec function is used to load the SHA256 library. We then define a main function that performs the following steps:

1. Define the string to be hashed.
2. Compute the SHA256 hash using the sha256 function from the loaded library.
3. Display the original string and its hash.

Finally, we call the main function to execute our code.

To run the program:

--> exec('sha256_example.sce', -1)
sha256 this string
1af1dfa857bf1d8814fe1af8983c18080019922e557f15a8a0d63597b42b3075

Note that the exact output may vary depending on the implementation of the SHA256 function in the library you’re using.

In Scilab, we don’t have the concept of building executables like in compiled languages. Scilab scripts are interpreted and can be run directly from the Scilab console or by using the exec function.

If you need cryptographically secure hashes, you should carefully research hash strength and ensure that the library you’re using is cryptographically secure and up-to-date.